Angry Birds Space Beak Impact Mirror Level M8-32 Walkthrough - AngryBirdsNest.com

Here is the time-compressed illustration of the glitch. However, the hard part of the process is what is actually not seen in the video.

https://www.youtube.com/watch?v=V1x8yXNecSA

You need that some of the infalling contraption clips the small antennaed pig to the right. For this, the more of the contraption is sucked into gravitational field, the better. But it seems almost impossible to have the whole upper part of the contraption sucked together with the lower part because the hose in between usually breaks. Moreover, you have no guarantee that the two upper pigs will be easily popable after the process, so:
1st shot to “behead” upper part of contraption and get rid of the two pigs there. Central and upper birdlets for the pigs, lower birdlet is expected to hit white trapezoidal thing. Don’t care about the score, just ensure that the two pigs are gone.
2nd bird as everybody: low power toward lower middle-sized pig “shoulder” with last send split, hoping/tuning so that (i) no birdlet hits hose (ii) one birdlet pushes lower right bubble without popping it (iii) infalling contraption will kindly both push leftmost bubbled pig down into gravitational field (iv) AND clip right bubbled pig with antenna (v) AND that one of the two will survive. Step (iv) is actually made easier when the pig you aimed for 2nd shot does NOT pop: it helps small pig not to be pushed too far on the right when clipped by contraption (you see it in the video). This increases difficulty of the shot, but actually there is probably more luck than skill there.

Then, you have to hope that antennaed pig will be clipped long enough to reach gravitational field and that, against all odds, it survives to the soft but treacherous landing on planet (from 00:34 to 00:46 in the video). If so, congrats, the hard part is over.

Now, the long part.

In the next couple of minutes, most of the contraction will crumble, and after a while, a sort of “train” of remaining debris will crawl (fisrt clockwise, then counterclockwise in the video, unsure whether it is always the same). Points accumulate without enough apparent reservoir for this. It seems that the bubbled pig does the job. Then wait a few hours (as reported by @meanguy) or a full day (my own experience, see timecodes of the different recorded parts in the upper right corner), and most importantly do not fumble the remaining shots after such a long wait. In case small pig to the left is still there, it may be difficult to finish the level with two birds, hence point (iii) above.

cc: @bernersenn

(Marked as new strat for the details, even though originating from @meanguy‘s last year message)